It's not looked upon negatively, but if you are applying with less than 3 years work experience, you have less potential essay material to draw from and run the risk of coming across as one-dimensional. Keep in mind that adcoms want well rounded people -- and the challenge for people in technical professions is being able to show that they are more than just human calculators -- that they are actively engaged in non-technical group activities outside of work. If you don't have much to show for that now, then you really should keep yourself busy outside of work once you graduate. It doesn't matter what it is -- political organizations, nonprofit, arts organizations, cultural organizations, etc. -- just really commit and dedicate yourself in terms of time and effort in some group activity that moves you. This isn't just for b-school applications, but for life. Don't sleepwalk your way through your working life. Find every which way to stay actively involved with other people in some organized activity (where you have responsibility - not just a casual thing) because the reward is your very act of commitment to the activity.
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